Modif Tag pre With CSS

Modif Tag <pre> With CSS | css lagi kawan haha :*

<pre rel="CSS">Kode Anda di sini...</pre>

nah kalo yang di bawah untuk cssnya

pre {
  background-color:#333;
  font:normal 12px/14px Monaco,Monospace;
  color:#ccc;
  padding:10px 15px;
  margin:0px 0px 10px;
  position:relative;
}

pre[rel] {
  padding-top:32px;
}

pre[rel]:before {
  content:attr(rel);
  font:bold 12px/22px Arial,Sans-Serif;
  color:white;
  background-color:#39f;
  padding:0px 10px;
  position:absolute;
  top:0px;
  right:0px;
  left:0px;
}

Liat Demonya